Posts Tagged: Honda P3400 or P3497

Understanding a Honda P3400 and P3497 Code

Service bulletin fix For a Honda P3400 or P3497 code Honda has issued a service bulletin 13-055 to fix a P3400 or P3497 code, along with multiple misfire codes P0301 through P0304) on the vehicles listed below. The Honda P3400 and P3497 codes relate to rocker arm oil pressure switches B and C, which measure oil pressure entering the variable cylinder management system (VCM). The VCM system disengages cylinders to improve MPG. On a six-cylinder engine, the VCM system has three modes: All 6 cylinders operate normally, the VCM pauses … Read More